15. find the volume of a pyramid with an area of 20 cm2 and a height of 24 cm. a. 240 cm3 b. 140 cm3 c. 160 cm3 d. 200 cm3

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?